Butler described meeting Glanville at a beach party and asking, "What do you do?" She told him it didn't matter.

That means one of two things, generally: celebrity or drug dealer. Red flag, bro!

He continued, "We hung out, we had a little fun. Suddenly, one day, I'm walking down the street and this paparazzo ... runs in my face and said, 'So Brandi Glanville says you're great in bed!'"

"So I said, 'Who's Brandi Glanville?'" Butler admitted, chuckling. "Because I didn't know her last name, I didn't know she was a celebrity -- and I didn't know she was going to f---ing tell people about it."

Watch the clip above to find out how Butler figured everything out -- and what Glanville did when he reached out to discuss the drama.